Toyota Red Rubber grease (misuse) update.

[Rust_Belt_Pete]

Huh? it's not meant to be "inside" the brake system whatsoever. It's meant to lubricate external caliper piston seals, mostly. FYI, those seals are exposed to the same "water, dirt, salt" corrosion as the rest of the vehicle.

The square seal inside the piston?

 

[StarCaller]

Is stuff greasy? Are you going to get it on your clothes if you brush against it? like Vaseline? Amazon shows me several products. Not sure exactly what one we are looking for.

That's the one:
Genuine Honda 08798-9013 Silicone Grease

 

[Johnny248]

That's the one:
Genuine Honda 08798-9013 Silicone Grease

View attachment 310154

Thanks!

 

[ChiTDI]

Gummi Pflege Stift. Sold in the Alps at every service station and works great.
You can get it on Amazon.
No frozen doors.

 

[CleanSump]

The square seal inside the piston?

NO! NO! NO! If you need a lube to get it to slide in, use the same brake fluid that you will put in the master cylinder.

 

[Rust_Belt_Pete]

NO! NO! NO! If you need a lube to get it to slide in, use the same brake fluid that you will put in the master cylinder.

I can do that but this red rubber grease is designed to be compatible with brake fluid and is actually suggested for caliper reassembly/new seal. Germans have their own version too.

 

[CleanSump]

I can do that but this red rubber grease is designed to be compatible with brake fluid and is actually suggested for caliper reassembly/new seal. Germans have their own version too.

Interesting. First I've heard of it. Do you have a link I can check out?
I can learn new tricks.

 

[Rust_Belt_Pete]

Interesting. First I've heard of it. Do you have a link I can check out?
I can learn new tricks.

I dont have it on me but I know toyota shop manuals talk about it when reassembling calipers.
Also I watch a russian speaking channel a slavic guy owns a small chain of mechanical shops in Japan and that is what they use when they put the square seal back in. (when they do inspections they go as far as tearing down the caliper).

Edit, it also comes in the toyota caliper rebuild kit (their fixed caliper so there is no slider pins there its to be used for the square seals.)

 

[nthach]

NO! NO! NO! If you need a lube to get it to slide in, use the same brake fluid that you will put in the master cylinder.

Honda and Toyota also include a packet of red grease in their master cylinder rebuild kits, IIRC. It’s the same red rubber grease used on the slide pins.

 

[typhon]

Interesting. First I've heard of it. Do you have a link I can check out?
I can learn new tricks.

From what I remember, this component is in the same chemical family as brake fluid, so it should be soluble in brake fluid.

In Japan, there is also an aerosol spray with a similar composition that is commonly used for brake system maintenance.

In practice, I use it in situations where it does not come into contact with the external environment—for example, the internal seals of caliper pistons that block brake fluid.

Because ethylene glycol is hygroscopic, even though Toyota seems to claim it can provide water and rust protection.

For external dust- and water-proof seals, I use 3M’s brake-specific silicone grease or other brands.

P.S. Images are from eBay and Amazon Japan.

 

[JohnnyG]

The square seal inside the piston?

NO!

 

[f355spider]

Gummi Pflege Stift. Sold in the Alps at every service station and works great.
You can get it on Amazon.
No frozen doors.

Agreed. I've used several brands over the years. Been using this one from Sonax the past five years, it works well. You do have to reapply every four weeks though.

https://www.amazon.com/Sonax-034010...c89e6296b6e7f22e6a&qid=1768083144&sr=8-7&th=1

 

[Mackelroy]

I used Toyota Red Rubber grease on my door seals because they tend to freeze to the car body and you have a choice between ripping them off or waiting a week to get into the car.
After about 3 months the rubber grease being constantly exposed to water dirt and salt has turned into whiteish chalky substance that now does not really help with the freezing issue.
Next up I will try silicone grease.
Not a knock on toyota red rubber grease, it was made to be INSIDE the brake system out of being exposed to direct moisture and salt.

dielectric silicone grease is the proper grease to use.

 

[Rust_Belt_Pete]

Yeah, that's what I bought after trying red grease. Got some THICK shin etsu grease